Influence of cadmium, nickel, zinc on the balance of chemical elements in soil

Each region has its own peculiarities of accumulation and distribution of microelements in different types of soil. The study of the content of mobile forms of elements is of particular interest, since they are the most accessible for plants. To study this issue, microfield experiments with beetroot and carrots were carried out. Microelements were manually introduced into the soil in the form of dry acetate salts, fertilizers - in the form of ammonium nitrate and double granulated superphosphate. As a result of the research, mobile forms of cadmium, nickel, and zinc in the soil were determined before and after the introduction of microelements, the coefficients of intensity of the action per unit of microelements supplied to the soil for the content of such elements in the soil (mg/kg) were determined, allowing for the evaluation of their concentration in meadow-chernozem soil and thus their inflow into the plant. Thus, when 1 kg/ha of cadmium, nickel, and zinc are supplied, the content of mobile forms of such elements in a 0-30 cm soil layer increases by 0.18, 0.08, and 0.09 mg/kg respectively (on average according to the options). The established coefficients (in mg/kg) allow for the forecasting of the concentration of elements in meadow-chernozem soil (in mg/kg). This makes it possible to roughly predict the optimal levels of microelements in the soil and thereby to foresee their effect on the quality of crop production.